Investigation to Dynamic Interference on High-Rise Buildings by Integral of Instantaneous Pressure
Xing Yufan,Ni Zhenhua,Xie Zhuangning
(Department of Civil Engineering, Shantou University, Shantou 515063, China)

Abstract: An alternative approach to investigate the wind-induced interference on buildings was presented via measuring and integrating instantaneous wind pres sures distributed on the rigid model surface in wind tunnel. The instantaneous wind pressures on the model surface were obtained from the synchronous multi-channel pressure measurements, the pressure taps were arranged as the nodes of Gauss numerical integration to improve accuracy. A rigid model of a high-rise buil ding with pressure taps distributed on the surface and three interference-build ing models with different heights were designed, the along-wind and across-wind interferences between two high-rise buildings with identical height and diff erent heights were investigated. The effects of the arrangement, spacing and height of the adjacent building on the dynamic base overturning moment of the inter fered building were discussed in terms of the interference factor, and compared with the results from the traditional approaches.
keywords: high-rise buildings, wind interference, instantaneous wind pressures.